The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2003
Filed:
Aug. 29, 2001
Koichi Yokosawa, Kodaira, JP;
Daisuke Suzuki, Kodaira, JP;
Keiji Tsukada, Kashiwa, JP;
Tsuyoshi Miyashita, Fuchu, JP;
Akihiko Kandori, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gradiometer integrating pickup coils comprises pickup coils Xp, Xn magnetically connected to a SQUID through associated input coils , and pickup coils Yp, Yn magnetically connected to a SQUID through associated input coils , respectively. Two superconducting loops are connected in series to each of the SQUIDs, when viewed from Josephson junctions . The input coils form superconducting closed loops together with the pickup coils Xp, Xn, Yp, Yn associated therewith. The SQUIDs are respectively connected to form an -figured shape as a whole such that currents flow in two superconducting loops of each SQUID in opposite directions to each other, with respect to the application of a uniform field, in order to reduce environmental magnetic field noise.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile